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EP1212525A1 - Device for regulating flow in a duct portion or an intake passage and manifold comprising same - Google Patents

Device for regulating flow in a duct portion or an intake passage and manifold comprising same

Info

Publication number
EP1212525A1
EP1212525A1 EP00960770A EP00960770A EP1212525A1 EP 1212525 A1 EP1212525 A1 EP 1212525A1 EP 00960770 A EP00960770 A EP 00960770A EP 00960770 A EP00960770 A EP 00960770A EP 1212525 A1 EP1212525 A1 EP 1212525A1
Authority
EP
European Patent Office
Prior art keywords
assembly
parts
axis
passage
manifold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00960770A
Other languages
German (de)
French (fr)
Other versions
EP1212525B1 (en
Inventor
Fabien Moreau
Richard Komurian
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sogefi Air and Cooling SAS
Original Assignee
Mark IV Systemes Moteurs SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mark IV Systemes Moteurs SAS filed Critical Mark IV Systemes Moteurs SAS
Publication of EP1212525A1 publication Critical patent/EP1212525A1/en
Application granted granted Critical
Publication of EP1212525B1 publication Critical patent/EP1212525B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/109—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps having two or more flaps
    • F02D9/1095—Rotating on a common axis, e.g. having a common shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10255—Arrangements of valves; Multi-way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/107—Manufacturing or mounting details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/104—Intake manifolds
    • F02M35/112—Intake manifolds for engines with cylinders all in one line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Definitions

  • Device for regulating the flow in a portion of a conduit or a passage and collector comprising such a device
  • the present invention relates to the field of controlling the flow of fluids, in particular gaseous fluids, and more particularly in the context of the intake of air for heat engines, for example in relation to intake manifolds, but also of more generally, the devices for controlling the flow in a passage by means of a member disposed in this passage and which can be manipulated by a control pin.
  • the present invention more specifically relates to a device for regulating the flow in a portion of a conduit or a passage, an intake manifold comprising such a device and a method of manufacturing such a manifold.
  • a device for regulating or controlling the flow or flow in a passage of a portion of conduit or the like is generally carried out, during one or more particular operations, either by mounting a transverse insert carrying the adjusting member in said pipe portion, after cutting an opening in the latter, either by fitting an intermediate duct segment provided with said adjusting member between two spaced apart parts said portion of conduit.
  • the object of the present invention is in particular to overcome at least some of these drawbacks.
  • each valve / control shaft assembly is integrated into the structure of the portion of duct concerned or into the structure of the part comprising at least one portion of duct, at level '' a passage opening being trapped, with the possibility of rotation, between two complementary parts forming by assembly, by friction or vibration welding, said portion of conduit or said part and by being mounted in corresponding receiving recesses formed in the walls portions of conduits and / or in one or more separate or offset bearing (s) or corresponding (s).
  • FIG. 1 is a side elevational view in section of a portion of duct comprising a regulating device according to the invention
  • Figure 2 is a view in direction A of the object of Figure 1
  • Figures 3 are perspective views and partially in section of part of an intake manifold, before (Fig. 3A) and after (Fig.
  • FIG. 3B mounting of a control shaft provided with valves at level d 'a part of a manifold wall or distributor carrying constituent parts of the intake pipes, according to a first embodiment of the invention
  • Figure 4 is a detail view on another scale of a part of the object shown in Figure 3B
  • Figures 5 are partial sectional and perspective views of part of an intake manifold, at the through openings of the pipes, before mounting of an axis provided with valves (Fig. 5A), after mounting such an axis (Fig. 5B) and after mounting the transmission mechanism and the actuator (Fig.
  • FIG. 5C is a second embodiment of the invention
  • Figure 6 is a detail view in direction B of the plug shown in Figure 5 (the transmission mechanism 14 having been removed)
  • Figure 7 is a schematic detail view and in side elevation of an intake manifold surrounded by a sealed enclosure
  • Figures 8 are partial schematic representations showing the assembly by vibration welding of two parts of a collector at a passage (Figures 8A, 8B and 8C: front perspective views) and its sealing by assembling a third part at the level of the external face of said passage (FIG. 8D: side elevation view)
  • FIG. 9 is a sectional view in lateral elevation of the solution represented in FIG. 8D adapted to the passage 15 ′ of the collector represented on Figures 5, according to another embodiment of the invention.
  • FIG. 1 The figures of the appended drawings show a device for regulating the flow of a fluid, in particular gaseous, in at least one portion of duct 2, a passage, an opening or the like (for example a portion of any fluid circulation circuit ) by means of a valve 3 or a similar rotary closure member, carried by a control shaft 4.
  • each valve 3 / control shaft 4 assembly is integrated into the structure of the portion of duct 2 concerned or in the structure of part 1 comprising at least one portion of duct 2, at the level of a passage opening while being trapped, with faculty of rotation, between two complementary parts 2 ′, 2 "or 1" , 1 '”forming by assembly said portion of conduit 2 or said part 1 and being mounted in corresponding recesses 5, 5' formed in the walls of portions of conduits 2 and / or in one or more bearing (s) separated or deported ( s) corresponding (s) 6 present on at least one of the parts 1 ", 1 '" forming the part 1.
  • the invention applies equally to a portion of conduit 2 or to a passage opening alone, only to several portions of ducts 2 or openings connected or not connected to one another and arranged between them in any way.
  • the regulating device can comprise a set of valves 3 / axis 4 extending to several portions of conduits 2 or passage openings of the part 1 each comprising a valve 3, all these valves 3 being mounted or formed on a single control axis 4.
  • portion of conduit in the present any circular passage or not which can be closed by a movable member of the valve type. This passage can, if necessary, be reduced to a simple through opening or passage opening, the axial or longitudinal dimension of the duct portion 2 then being very reduced, or even zero.
  • the valves 3 may be located in a middle part of the conduits 2 or at the level of the through openings of such conduits.
  • control axis 4 is sandwiched between the parts 2 ', 2 "constituting said at least one portion of conduit 2 or said part 1, at the level of the assembly zone and of junction of said parts 2 ', 2 “or 1", 1' "(see Figures 1, 2 and 7).
  • assembly or junction lines 2 ' resulting from the intimate contact of the connection between the assembly or junction surfaces of the two constituent parts 2' and 3, may be located in a perpendicular plane to the axis of the duct portion 2 concerned, but also extend in other directions in order to facilitate the assembly of the parts 2 ′ and 2 ".
  • the assembly and junction surfaces are defined in such a way that they open onto at least one of the receiving recesses 5, 5 ′ and cut the portion of conduit 2 concerned to allow the installation of the 'control shaft assembly 4 / valve (s) 3 in at least one of the constituent parts 2' and 2 "or between them.
  • control axis 4 is attached at the level of one of the ends of the conduit 2, by being fixed to portions of walls (connecting for example two adjacent conduits) in places offset from the wall of the duct.
  • the support and guiding functions of the control axis 4 carrying the valve (s) 3 with a view to maintaining and rotating it can be accomplished by means of various technical solutions described, by way of non-limiting examples, below. after.
  • the support of the control axis 4 and its guiding in rotation can be ensured, at least in part, by at least one bearing 6 outside the wall or walls of the portion (s) of conduit (s) 2 or of the part 1 considered, if necessary formed by assembling two complementary parts each present on the 'one of parts 1 "and 1'" or preformed exclusively on one of the two aforementioned parts.
  • control axis 4 can be mounted with guiding in rotation at one or more bearings 6 offset (s) relative to the walls of the conduit (s) 2 and formed (s) on the 'a 1 "of the two parts 1", the "of the part 1, the fixing and the holding being obtained by elastic engagement or snap-fitting of said axis 4 in said bearings 6, 12 and said axis 4 being trapped between said parts 1" , l "without there being contact with the other l" of said two parts 1 ", l", neither at the level of the axis 4 or of the valves 3, nor at the level of the bearings 6.
  • the bearings 6 can for example be formed by a structure having a general U-shape comprising one or two wings or tongues 6 'deformable or resilient forming between them, or with additional formation, said bearings 6 provided with an introduction opening narrowed adapted to elastically retain the axis 4 after its introduction by spacing of said wings provided with retention noses 6 "opposite (see in particular Figures 3, 4 and 5).
  • At least one of the support and guide bearings 7 in rotation of the control axis 4 can be formed by cooperation of the opposite receiving recesses 5, 5 ′ formed in the junction zones of the walls of the two parts 2 ′, 2 "or 1", 1 '"forming the portion (s) of conduit (s) 2 or the part 1, said one or more support and guide bearings 7 being optionally made watertight with or without the interposition of an attached sealing part 8.
  • said control axis 4 may comprise one or more cylindrical protrusions 9 or annular (discoidal) protrusions 9 ', formed of a integral with said axis 4 or attached to the latter by overmolding or mounting, and intended to cooperate with the support and guide bearings 6, 7 or with stops 10 for locking in translation of said control axis 4.
  • the protrusions 9, 9 ' may advantageously consist of a material resistant to wear and / or having a reduced coefficient of friction with the material constituting the support and guide bearings 6 and 7, the annular protrusions 9 in the form of sleeves being able to have discoidal stops 9 "at their opposite longitudinal ends so as to form translation locking sites for the axis 4 after its assembly.
  • control shaft 4 may also include one or more pre-assembled rotary guide bearings 11, trapped and locked in support bearings 12 formed during the assembly of the two parts 2 ′ and 2 ′′ or 1 ′′ and 1 ′′ composing the portion (s) of conduits 2 or the part 1.
  • the pre-assembled rotational guide bearings 11, for example in the form of ball or needle bearings, may possibly be completely encapsulated in the support bearings 12 so as to protect them and block them in translation, which will make the stops redundant
  • control axis 4 can be achieved either by using only one of the solutions described above, or by mixing them.
  • the entire control shaft 4 / valve (s) 3 can be obtained either by fixing (for example welding, screwing, clipping, folding or other) of metal valves on an axis (metallic or not), or by overmolding the valves on a metal or plastic axis (the protuberances 9 for guiding or the bearings 11 being placed on the axis before or after the overmolding), or by molding in one piece of a plastic shaft / valves assembly.
  • the assembly between the parts 2 'and 2 "constituting the portion of conduit 2 and / or between the parts 1" and 1' “constituting the part 1 may also be carried out in different ways, such as for example mechanical connection, bonding, welding or other, depending on the nature of the material constituting said parts 2 'and 2 "or 1" and 1 ".
  • control axis 4 may be located centrally with respect to the valve (s) 3 or, if appropriate, eccentric or off-center, so as not to disturb the flow in position d 'maximum opening or passage of said valves 3 (on this subject see French patent application No. 99,02531 in the name of the applicant).
  • the two parts 2 ′ and 2 ′′ or 1 ′′ and the ′′ constituting the portion of conduit 2 and / or the part 1 are made of thermoplastic material and are assembled by vibration welding, the planes of the joint being configured and arranged in such a way that they authorize, if necessary, the installation of the control shaft 4 / valve (s) 3 assembly on or in one at less of said two parties or between them.
  • Sealing at the passages of the axis 4 can be obtained by forming a lining at the time of assembly, by a separate sealing element added before or after assembly or by adding an additional part or part 17 by vibration welding at the external face of the passage (s) concerned, this additional part possibly, if necessary, enclosing a support and guide bearing 6, 12 axially sealed.
  • the present invention also relates to an intake manifold or distributor 1 comprising at least one, and preferably several, intake pipes 2, in the form of portions of conduits intended to connect the chamber of the manifold or distributor to the cylinder heads, and constituted by assembling at least two complementary parts 1 ", 1 '" in thermoplastic material by vibration welding (see FIGS. 3 to 5 and 7 to 9).
  • This intake manifold or distributor 1 is characterized in that at least some of the pipes 2 or passage openings of the latter, and preferably all, include a regulation device as described above, integrated into the structure of said manifold or distributor 1 and forming a flow regulation assembly comprising several valves 3 mounted or formed on a single control axis 4 passing through said intake pipes 2 or passage openings and provided at one of its ends with a means of securing 13, in particular at least of coupling in rotation, with a transmission mechanism 14 connected to an actuator 14 'or with an actuator directly.
  • a regulation device as described above, integrated into the structure of said manifold or distributor 1 and forming a flow regulation assembly comprising several valves 3 mounted or formed on a single control axis 4 passing through said intake pipes 2 or passage openings and provided at one of its ends with a means of securing 13, in particular at least of coupling in rotation, with a transmission mechanism 14 connected to an actuator 14 'or with an actuator directly.
  • Said actuator 14 ′ may be of pneumatic, electrical, mechanical or other nature.
  • control axis 4 provided with valves 3 extends transversely near one of the ends of the intake pipes 2, namely at its junction zone with the wall l of the manifold chamber 1 or at its junction zone with the mounting plate on the cylinder heads, the support bearings 12 and, where appropriate, guide bearings 6, 7, as well as the locking stops in translation 10 of the control axis 4, being at least partially, and preferably entirely, formed on said wall l 'of the manifold chamber or on said fixing plate.
  • stops 10 may be formed either by protrusions of the wall l '( Figures 3), or by recesses of the latter ( Figures 5).
  • Said control shaft 4 / valves 3 assembly may in particular be located at the intake manifold interface 2 / manifold chamber 1 or intake manifold 2 / cylinder head interface.
  • said assembly could be sandwiched between two parts 1 "and 1 '" forming the chamber of said manifold or distributor and having a plane or an assembly or junction line crossing said tubing interface region. / manifold at the level of the openings of said pipes in the chamber of said manifold (FIGS. 3 to 5).
  • the control shaft 4 freely and without contact passes through the walls of the intake pipes 2 concerned or extends through the openings of said pipes 2 opening into the chamber of the manifold 1, the assembly of the constituent parts 1 ", 1 '" of the manifold 1 forming a sealed enclosure 15 around the junction zones of all of said intake pipes 2 with the wall l ′ of the collector 1 or of the opening of the said pipes 2 in the chamber of the collector 1, the part formed by the control shaft 4 / valves 3 assembly being mounted by engagement or snap-fastening in bearings 6, 12 preformed on the wall l 'of one 1 "of parts 1", l "forming the collector 1, at the level of cylindrical protuberances 9 or portions of bearings 11 formed or attached to the axis 4, the other l" of said 1 "pieces, the" emp possibly preventing any extraction of the axis 4 of said bearings 6, 12 after assembly of the two parts 1 "and the".
  • said sealed enclosure 15 is completed at the level of the passage 15 ′ for the outgoing control axis portion 4 carrying the means for securing 13 or for the operating rod 14 "returning from the transmission mechanism 14, by an annular axial plug 16, hot-pressed or force-fitted or welded at the level of said passage 15 '(this plug possibly carrying means for sealing the passage of the axis 4 or ensuring by itself said tightness while allowing the rotation of the operating rod 14 "and / or of the mechanism 14).
  • the sealed enclosure 15 formed by the assembly of the two parts 1 "and the" of the manifold 1 is closed, at the passage 15 'for the outgoing control pin portion 4 carrying the securing means 13 or for the re-entrant operating rod 14 "of the mechanism transmission 14, by securing, by vibration welding, at the opening or the external face of said passage 15 ', a third hollow portion 17 containing at least one component of the transmission mechanism 14 and / or at least one bearing 6, 12 with axial sealing, this third part 17 being joined after the part 1 has been formed.
  • the axis 4 / valves 3 assembly extends entirely in the sealed enclosure 15, the axis 4 not crossing the zones or lines of assembly by welding, the two valves 3 at the opposite ends of the axis 4 being mounted in cantilever and the valve 3 located near the passage 15 'being provided with an axial blind channel 18, for example with rectangular section , for receiving by fitting the end of the operating rod 14 "and forming the securing means 13.
  • the securing means 13 may, alternatively, also be in the form of a square section extension of the control shaft 4, connected to a female part having a sleeve reception of complementary shape (for example by clipping, gluing, force fitting and / or hot fitting or the like) forming part of the transmission mechanism 14 connected to an actuator.
  • the actuating mechanism of the control axis 4 may authorize the movement of the valves 3 between an open position and a closed position (total or not), the extreme positions being defined by one or more mechanical stops linked to the 'control axis and preferably located near the actuator 14'.
  • the movement between the open and closed positions can be done either all or nothing, or proportionally.
  • the connection between the control axis 4 and the transmission mechanism 14 can take place either outside, or preferably inside the sealed enclosure formed during the assembly of the two component parts 1 " and 1 '"of the manifold 1, the aforementioned female or male part then extending, in leaktight manner, through a corresponding passage orifice 15'.
  • the present invention also relates to a method of manufacturing an intake manifold or distributor 1 such that described above, from at least two parts 1 ", 1 '" of thermoplastic material.
  • This process essentially consists in supplying a first part 1 "of an intake manifold 1, to be installed on or in this first part 1" and in recesses 5, 5 ′ and / or bearing portions 6, 12 adapted support and / or guide, a control axis comprising several valves 3 each arranged in a passage opening or a passage of part 2 'of intake manifold 2 corresponding, to provide at least a second part " of the intake manifold 1 comprising, where appropriate, the complementary parts 2 "of the intake pipes 2 and at or placing them in the assembly position with the first part 1" by trapping or sandwiching the axis of control 4 with the valves 3 and, finally, to assemble by vibration welding said at least two parts 1 ", the" intake manifold 1.
  • the second part 1 " can either participate directly in the imprisonment of the axis 4 / valves 3 while being in contact t direct with said assembly (sandwiched and pinching of axis 4 between the two parts 1 "and 1", possibly at the level of the assembly line between the two parts 2 “and 2" of the portions of conduit 2 ), or constitute only a cover portion or a cover with respect to the first part 1 ", the latter ensuring, if necessary, only the support and the guiding in rotation of the axis 4 / valves 3 assembly.
  • the assembly of the axis 4 / valves 3 assembly is achieved by fitting or snapping onto said first part 1 "and the assembly of the two parts l" and the “realizes a sealed enclosure 15 around said assembly with the exception of a drive passage 15 ', the latter being made leaktight when coupling the transmission mechanism 14 with the control axis 4.
  • the basis of the invention consists in first of all mounting the control pin 4 / valve (s) 3 assembly on a part 1 ", 2 'or between two parts 1" and the ", 2 'and 2" (said assembly possibly being held in place by bearing portions 5, 5', 6 or 11) then, in a second step, to carry out the operation of assembling the two parts 1 "and 1 '", 2' and 2 "constituting the portion of conduit 2, the collector or distributor 1 or any other object or structure intended to include a regulation device according to the invention.
  • the invention makes it possible to arrive at a technical solution reducing to the minimum the operations necessary for the installation and the mounting of the regulation device (without interfering with the existing manufacturing process and without lengthening it), compact and leading to a full integration of said regulating device (protection against shocks), while guaranteeing a reliable seal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Valve Housings (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Characterised By The Charging Evacuation (AREA)
  • Air-Flow Control Members (AREA)

Abstract

The invention concerns a device for regulating flow in a duct portion or an intake passage and a manifold comprising such a device. The device is characterized in that each valve ( 3 )/control pin ( 4 ) assembly is incorporated in the structure of said duct portion ( 2 ) or in the structure of the part ( 1 ) comprising at least a duct portion ( 2 ), at the opening of through passage, being enclosed, with the possibility of rotating between two matching parts ( 2', 2 '' or 1', 1 '') forming by being assembled said duct portion ( 2 ) or said part ( 1 ) and being mounted in corresponding housing recesses ( 5, 5' ) provided in the walls of duct portions ( 2 ) and/or in one or several separate corresponding bearing(s) ( 6 ).

Description

Dispositif de régulation de l'écoulement dans une portion de conduit ou un passage et collecteur comprenant un tel dispositif Device for regulating the flow in a portion of a conduit or a passage and collector comprising such a device
La présente invention concerne le domaine du contrôle de l'écoulement des fluides, notamment gazeux, et plus particulièrement dans le cadre de l'admission d'air pour les moteurs thermiques, par exemple en relation avec les collecteurs d'admission, mais également de manière plus générale les dispositifs de contrôle du flux dans un passage au moyen d'un organe disposé dans ce passage et manipulable par un axe de commande.The present invention relates to the field of controlling the flow of fluids, in particular gaseous fluids, and more particularly in the context of the intake of air for heat engines, for example in relation to intake manifolds, but also of more generally, the devices for controlling the flow in a passage by means of a member disposed in this passage and which can be manipulated by a control pin.
La présente invention a plus précisément pour objet un dispositif de régulation de l'écoulement dans une portion de conduit ou un passage, un collecteur d'admission comprenant un tel dispositif et un procédé de fabrication d'un tel collecteur.The present invention more specifically relates to a device for regulating the flow in a portion of a conduit or a passage, an intake manifold comprising such a device and a method of manufacturing such a manifold.
Actuellement, l'intégration d'un dispositif de régulation ou de contrôle de l'écoulement ou du flux dans un passage d'une portion de conduit ou analogue s'effectue généralement, au cours d'une ou de plusieurs opérations particulières, soit par montage d'un insert transversal portant l'organe de réglage dans ladite portion de conduite, après découpage d'une ouverture dans cette dernière, soit par mise en place d'un segment de conduit intermédiaire pourvu dudit organe de réglage entre deux parties espacées de ladite portion de conduit.Currently, the integration of a device for regulating or controlling the flow or flow in a passage of a portion of conduit or the like is generally carried out, during one or more particular operations, either by mounting a transverse insert carrying the adjusting member in said pipe portion, after cutting an opening in the latter, either by fitting an intermediate duct segment provided with said adjusting member between two spaced apart parts said portion of conduit.
Toutefois, ces procédés connus nécessitent soit la réalisation d'inserts complexes, comprenant, outre l'organe de régulation, également une portion de paroi ou des structures de palier prémontées dont l'assemblage intime et étanche avec les portions de parois réceptrices de la portion de conduit ou analogue est très délicate à réaliser, soit la fourniture et la mise en place de pièces intermédiaires ou intercalaires d'adaptation ou d'intégration supplémentaires, servant uniquement au montage dudit organe de régulation et ne constituant pas une pièce structurelle formant effectivement partie constitutive de ladite portion de conduit ou analogue.However, these known methods require either the production of complex inserts, comprising, in addition to the regulating member, also a wall portion or preassembled bearing structures whose intimate and sealed assembly with the receiving wall portions of the portion duct or the like is very delicate to produce, that is to say the supply and installation of additional intermediate or intermediate pieces of adaptation or integration, serving only for mounting said regulating member and not constituting a structural part actually forming part constituting said portion of conduit or the like.
De plus, ces procédés connus créent généralement des zones de fragilisation au niveau des plans ou lignes d'assemblage des différentes parties constituantes (pièces rapportées) et nécessitent des opérations techniques ou des pièces supplémentaires par rapport à la fabrication même de la portion de conduit ou similaire (sans dispositif de régulation). En outre, les ensembles résultant de ces procédés connus présentent un encombrement pénalisant, dû à leur constitution et généralement à une commande déportée et saillante.In addition, these known methods generally create weakening zones at the level of the planes or assembly lines of the various constituent parts (added parts) and require technical operations or additional parts compared to the actual manufacture of the portion of conduit or similar (without regulating device). In addition, the assemblies resulting from these known methods have a penalizing bulk, due to their constitution and generally to a remote and protruding control.
La présente invention a notamment pour objet de pallier au moins certains de ces inconvénients.The object of the present invention is in particular to overcome at least some of these drawbacks.
A cet effet, elle a pour objet un dispositif de régulation de l'écoulement d'un fluide, notamment gazeux, dans au moins une portion de conduit, un passage ou similaire au moyen d'un clapet ou d'un organe d'obturation rotatif analogue, porté par un axe de commande, caractérisé en ce que chaque ensemble clapet / axe de commande est intégré dans la structure de la portion de conduit concernée ou dans la structure de la pièce comprenant au moins une portion de conduit, au niveau d'une ouverture de passage en étant emprisonné, avec faculté de rotation, entre deux parties complémentaires formant par assemblage, par soudage par friction ou vibration, ladite portion de conduit ou ladite pièce et en étant montés dans des renfoncements de réception correspondants ménagés dans les parois des portions de conduits et/ou dans un ou des palier(s) séparé(s) ou déporté(s) correspondant(s).To this end, it relates to a device for regulating the flow of a fluid, in particular a gaseous fluid, in at least one portion of conduit, a passage or the like by means of a valve or a shutter member. similar rotary, carried by a control shaft, characterized in that each valve / control shaft assembly is integrated into the structure of the portion of duct concerned or into the structure of the part comprising at least one portion of duct, at level '' a passage opening being trapped, with the possibility of rotation, between two complementary parts forming by assembly, by friction or vibration welding, said portion of conduit or said part and by being mounted in corresponding receiving recesses formed in the walls portions of conduits and / or in one or more separate or offset bearing (s) or corresponding (s).
L'invention sera mieux comprise, grâce à la description ci- après, qui se rapporte à des modes de réalisation préférés, donnés à titre d'exemples non limitatifs, et expliqués avec référence aux dessins schématiques annexés, dans lesquels : la figure 1 est une vue en élévation latérale et en coupe d'une portion de conduit comportant un dispositif de régulation selon l'invention ; la figure 2 est une vue suivant la direction A de l'objet de la figure 1 ; les figures 3 sont des vues en perspective et partiellement en coupe d'une partie d'un collecteur d'admission, avant (Fig. 3A) et après (Fig. 3B) montage d'un axe de commande pourvu de clapets au niveau d'une partie de paroi de collecteur ou répartiteur portant des parties constitutives des tubulures d'admission, selon une première variante de réalisation de l'invention ; la figure 4 est une vue de détail à une autre échelle d'une partie de l'objet représenté sur la figure 3B ; les figures 5 sont des vues partielles en coupe et en perspective d'une partie d'un collecteur d'admission, au niveau des ouvertures débouchantes des tubulures, avant montage d'un axe pourvu de clapets (Fig. 5A), après montage d'un tel axe (Fig. 5B) et après montage du mécanisme de transmission et de l'actionneur (Fig. 5C), selon une seconde variante de réalisation de l'invention ; la figure 6 est une vue de détail suivant la direction B du bouchon représentée sur la figure 5 (le mécanisme de transmission 14 ayant été enlevé) ; la figure 7 est une vue schématique de détail et en élévation latérale d'une tubulure d'admission entourée d'une enceinte étanche ; les figures 8 sont des représentations schématiques partielles montrant l'assemblage par soudage par vibration de deux parties d'un collecteur au niveau d'un passage (figures 8A, 8B et 8C : vues frontales en perspective) et son étanchéification par assemblage d'une troisième partie au niveau de la face externe dudit passage (Figure 8D : vue en élévation latérale), et, la figure 9 est une vue en coupe en élévation latérale de la solution représentée sur la figure 8D adaptée au passage 15' du collecteur représenté sur les figures 5, selon un autre mode de réalisation de l'invention.The invention will be better understood from the description below, which relates to preferred embodiments, given by way of nonlimiting examples, and explained with reference to the appended schematic drawings, in which: FIG. 1 is a side elevational view in section of a portion of duct comprising a regulating device according to the invention; Figure 2 is a view in direction A of the object of Figure 1; Figures 3 are perspective views and partially in section of part of an intake manifold, before (Fig. 3A) and after (Fig. 3B) mounting of a control shaft provided with valves at level d 'a part of a manifold wall or distributor carrying constituent parts of the intake pipes, according to a first embodiment of the invention; Figure 4 is a detail view on another scale of a part of the object shown in Figure 3B; Figures 5 are partial sectional and perspective views of part of an intake manifold, at the through openings of the pipes, before mounting of an axis provided with valves (Fig. 5A), after mounting such an axis (Fig. 5B) and after mounting the transmission mechanism and the actuator (Fig. 5C), according to a second embodiment of the invention; Figure 6 is a detail view in direction B of the plug shown in Figure 5 (the transmission mechanism 14 having been removed); Figure 7 is a schematic detail view and in side elevation of an intake manifold surrounded by a sealed enclosure; Figures 8 are partial schematic representations showing the assembly by vibration welding of two parts of a collector at a passage (Figures 8A, 8B and 8C: front perspective views) and its sealing by assembling a third part at the level of the external face of said passage (FIG. 8D: side elevation view), and, FIG. 9 is a sectional view in lateral elevation of the solution represented in FIG. 8D adapted to the passage 15 ′ of the collector represented on Figures 5, according to another embodiment of the invention.
Les figures des dessins annexés montrent un dispositif de régulation de l'écoulement d'un fluide, notamment gazeux, dans au moins une portion de conduit 2, un passage, une ouverture ou similaire (par exemple une portion de circuit de circulation de fluide quelconque) au moyen d'un clapet 3 ou d'un organe d'obturation rotatif analogue, porté par un axe de commande 4. Conformément à l'invention, chaque ensemble clapet 3 / axe de commande 4 est intégré dans la structure de la portion de conduit 2 concernée ou dans la structure de la pièce 1 comprenant au moins une portion de conduit 2, au niveau d'une ouverture de passage en étant emprisonné, avec faculté de rotation, entre deux parties complémentaires 2', 2" ou 1", 1 '" formant par assemblage ladite portion de conduit 2 ou ladite pièce 1 et en étant montés dans des renfoncements de réception 5, 5' correspondants ménagés dans les parois des portions de conduits 2 et/ou dans un ou des palier(s) séparé(s) ou déporté(s) correspondant(s) 6 présent(s) sur l'une au moins des parties 1 ", 1 '" formant la pièce 1. L'invention s'applique aussi bien à une portion de conduit 2 ou à une ouverture de passage seule, qu'à plusieurs portions de conduits 2 ou ouvertures reliées ou non entre elles et disposées entre elles de manière quelconque.The figures of the appended drawings show a device for regulating the flow of a fluid, in particular gaseous, in at least one portion of duct 2, a passage, an opening or the like (for example a portion of any fluid circulation circuit ) by means of a valve 3 or a similar rotary closure member, carried by a control shaft 4. According to the invention, each valve 3 / control shaft 4 assembly is integrated into the structure of the portion of duct 2 concerned or in the structure of part 1 comprising at least one portion of duct 2, at the level of a passage opening while being trapped, with faculty of rotation, between two complementary parts 2 ′, 2 "or 1" , 1 '"forming by assembly said portion of conduit 2 or said part 1 and being mounted in corresponding recesses 5, 5' formed in the walls of portions of conduits 2 and / or in one or more bearing (s) separated or deported ( s) corresponding (s) 6 present on at least one of the parts 1 ", 1 '" forming the part 1. The invention applies equally to a portion of conduit 2 or to a passage opening alone, only to several portions of ducts 2 or openings connected or not connected to one another and arranged between them in any way.
Ainsi, selon un mode de réalisation préféré de l'invention, le dispositif de régulation peut comprendre un ensemble clapets 3 / axe 4 s'étendant à plusieurs portions de conduits 2 ou ouvertures de passage de la pièce 1 comprenant chacune un clapet 3, tous ces clapets 3 étant montés ou formés sur un axe de commande 4 unique.Thus, according to a preferred embodiment of the invention, the regulating device can comprise a set of valves 3 / axis 4 extending to several portions of conduits 2 or passage openings of the part 1 each comprising a valve 3, all these valves 3 being mounted or formed on a single control axis 4.
Par le terme "portion de conduit", il faut entendre dans la présente tout passage circulaire ou non pouvant être obturé par un organe mobile du type clapet. Ce passage peut, le cas échéant, être réduit à une simple ouverture traversante ou ouverture de passage, la dimension axiale ou longitudinale de la portion de conduit 2 étant alors très réduite, voire nulle.By the term "portion of conduit" is meant in the present any circular passage or not which can be closed by a movable member of the valve type. This passage can, if necessary, be reduced to a simple through opening or passage opening, the axial or longitudinal dimension of the duct portion 2 then being very reduced, or even zero.
Les clapets 3 pourront être situés dans une partie médiane des conduits 2 ou au niveau des ouvertures débouchantes de tels conduits.The valves 3 may be located in a middle part of the conduits 2 or at the level of the through openings of such conduits.
Conformément à un mode de réalisation, l'axe de commande 4 est pris en sandwich entre les parties 2', 2" constitutives de ladite au moins une portion de conduit 2 ou de ladite pièce 1, au niveau de la zone d'assemblage et de jonction desdites parties 2', 2" ou 1", 1 '" (voir figures 1, 2 et 7).In accordance with one embodiment, the control axis 4 is sandwiched between the parts 2 ', 2 "constituting said at least one portion of conduit 2 or said part 1, at the level of the assembly zone and of junction of said parts 2 ', 2 "or 1", 1' "(see Figures 1, 2 and 7).
En outre, les lignes d'assemblage ou de jonction 2'", résultant de la mise en contact intime de la liaison entre les surfaces d'assemblage ou de jonction des deux parties constitutives 2' et 3, pourront être situées dans un plan perpendiculaire à l'axe de la portion de conduit 2 concernée, mais également s'étendre selon d'autres directions en vue de faciliter l'assemblage des parties 2' et 2".In addition, the assembly or junction lines 2 '", resulting from the intimate contact of the connection between the assembly or junction surfaces of the two constituent parts 2' and 3, may be located in a perpendicular plane to the axis of the duct portion 2 concerned, but also extend in other directions in order to facilitate the assembly of the parts 2 ′ and 2 ".
Il suffit que les surfaces d'assemblage et de jonction soient définies de telle manière qu'elles débouchent sur au moins l'un des renfoncements de réception 5, 5' et découpent la portion de conduit 2 concernée pour permettre la mise en place de l'ensemble axe de commande 4 / clapet(s) 3 dans au moins l'une des parties constitutives 2' et 2" ou entre elles.It suffices that the assembly and junction surfaces are defined in such a way that they open onto at least one of the receiving recesses 5, 5 ′ and cut the portion of conduit 2 concerned to allow the installation of the 'control shaft assembly 4 / valve (s) 3 in at least one of the constituent parts 2' and 2 "or between them.
Conformément à un autre mode de réalisation de l'invention, l'axe de commande 4 est rapporté au niveau de l'une des extrémités du conduit 2, en étant fixé à des portions de parois (reliant par exemple deux conduits adjacents) en des endroits décalés par rapport à la paroi du conduit. Les fonctions de support et de guidage de l'axe de commande 4 portant le ou les clapets 3 en vue de son maintien et de sa rotation peuvent être accomplies au moyen de différentes solutions techniques décrites, à titre d'exemples non limitatifs, ci-après. Ainsi, selon une première variante de réalisation de l'invention, représentée notamment sur les figures 1, 2, 3 et 4, le support de l'axe de commande 4 et son guidage en rotation peuvent être assurés, au moins en partie, par au moins un palier 6 extérieur à la paroi ou aux parois de la ou des portion(s) de conduit(s) 2 ou de la pièce 1 considéré(s), le cas échéant formé par assemblage de deux parties complémentaires présentes chacune sur l'une des parties 1 " et 1 '" ou préformé exclusivement sur l'une des deux parties précitées.In accordance with another embodiment of the invention, the control axis 4 is attached at the level of one of the ends of the conduit 2, by being fixed to portions of walls (connecting for example two adjacent conduits) in places offset from the wall of the duct. The support and guiding functions of the control axis 4 carrying the valve (s) 3 with a view to maintaining and rotating it can be accomplished by means of various technical solutions described, by way of non-limiting examples, below. after. Thus, according to a first embodiment of the invention, shown in particular in Figures 1, 2, 3 and 4, the support of the control axis 4 and its guiding in rotation can be ensured, at least in part, by at least one bearing 6 outside the wall or walls of the portion (s) of conduit (s) 2 or of the part 1 considered, if necessary formed by assembling two complementary parts each present on the 'one of parts 1 "and 1'" or preformed exclusively on one of the two aforementioned parts.
De manière avantageuse, l'axe de commande 4 peut être monté avec guidage en rotation au niveau d'un ou de plusieurs paliers 6 déporté(s) par rapport aux parois du ou des conduit(s) 2 et formé(s) sur l'une 1" des deux parties 1 ", l'" de la pièce 1, la fixation et le maintien étant obtenus par enclenchement ou encliquetage élastique dudit axe 4 dans lesdits paliers 6, 12 et ledit axe 4 étant emprisonné entre lesdites parties 1 ", l'" sans qu'il y ait contact avec l'autre l'" desdites deux parties 1 ", l'", ni au niveau de l'axe 4 ou des clapets 3, ni au niveau des paliers 6.Advantageously, the control axis 4 can be mounted with guiding in rotation at one or more bearings 6 offset (s) relative to the walls of the conduit (s) 2 and formed (s) on the 'a 1 "of the two parts 1", the "of the part 1, the fixing and the holding being obtained by elastic engagement or snap-fitting of said axis 4 in said bearings 6, 12 and said axis 4 being trapped between said parts 1" , l "without there being contact with the other l" of said two parts 1 ", l", neither at the level of the axis 4 or of the valves 3, nor at the level of the bearings 6.
Les paliers 6 peuvent par exemple être formés par une structure présentant une forme générale en U comportant une ou deux ailes ou languettes 6' déformables ou résilientes formant entre elles, ou avec une formation complémentaire, lesdits paliers 6 munis d'une ouverture d'introduction retrécie adaptée pour retenir élastiquement l'axe 4 après son introduction par écartement desdites ailes pourvues de nez de rétention 6" opposés (voir notamment figures 3, 4 et 5).The bearings 6 can for example be formed by a structure having a general U-shape comprising one or two wings or tongues 6 'deformable or resilient forming between them, or with additional formation, said bearings 6 provided with an introduction opening narrowed adapted to elastically retain the axis 4 after its introduction by spacing of said wings provided with retention noses 6 "opposite (see in particular Figures 3, 4 and 5).
Dans cette implémentation de l'invention, notamment applicable lorsque l'ensemble axe 4 / clapet(s) 3 est rapporté au niveau de l'ouverture débouchante du ou des conduits 2, aucun des paliers support ou de guidage n'est situé au niveau de la paroi du ou des conduit(s) 2 (voir notamment figures 3 et 5).In this implementation of the invention, in particular applicable when the axle 4 / valve (s) 3 assembly is attached to the level of the through opening of the duct (s) 2, none of the support or guide bearings is located at the level of the wall of the duct (s) 2 (see in particular Figures 3 and 5).
Conformément à une seconde variante de réalisation, représentée aux figures 1 et 2 des dessins annexés, au moins un des paliers de support et de guidage 7 en rotation de l'axe de commande 4 peut être formé par coopération des renfoncements de réception opposés 5, 5' ménagés dans les zones de jonction des parois des deux parties 2', 2" ou 1 ", 1 '" formant la ou les portion(s) de conduit(s) 2 ou la pièce 1, ledit ou lesdits paliers de support et de guidage 7 étant éventuellement rendus étanches avec ou sans interposition d'une pièce d'étanchéification 8 rapportée.In accordance with a second alternative embodiment, represented in FIGS. 1 and 2 of the accompanying drawings, at least one of the support and guide bearings 7 in rotation of the control axis 4 can be formed by cooperation of the opposite receiving recesses 5, 5 ′ formed in the junction zones of the walls of the two parts 2 ′, 2 "or 1", 1 '"forming the portion (s) of conduit (s) 2 or the part 1, said one or more support and guide bearings 7 being optionally made watertight with or without the interposition of an attached sealing part 8.
Pour faciliter, dans les deux variantes précitées, le guidage en rotation de l'axe 4 et l'assujettir en position, ledit axe de commande 4 peut comporter une ou plusieurs protubérances cylindriques 9 ou annulaires (discoïdales) 9', formées d'un seul tenant avec ledit axe 4 ou rapportées sur ce dernier par surmoulage ou montage, et destinées à coopérer avec les paliers de support et de guidage 6, 7 ou avec des butées 10 de blocage en translation dudit axe de commande 4.To facilitate, in the two aforementioned variants, the guiding in rotation of the axis 4 and securing it in position, said control axis 4 may comprise one or more cylindrical protrusions 9 or annular (discoidal) protrusions 9 ', formed of a integral with said axis 4 or attached to the latter by overmolding or mounting, and intended to cooperate with the support and guide bearings 6, 7 or with stops 10 for locking in translation of said control axis 4.
Les protubérances 9, 9' pourront avantageusement consister en un matériau résistant à l'usure et/ou présentant un coefficient de friction réduit avec le matériau constituant les paliers de support et de guidage 6 et 7, les protubérances annulaires 9 en forme de manchons pouvant présenter des butées discoïdales 9" à leurs extrémités longitudinales opposées de manière à former des sites de blocage en translation pour l'axe 4 après son montage.The protrusions 9, 9 'may advantageously consist of a material resistant to wear and / or having a reduced coefficient of friction with the material constituting the support and guide bearings 6 and 7, the annular protrusions 9 in the form of sleeves being able to have discoidal stops 9 "at their opposite longitudinal ends so as to form translation locking sites for the axis 4 after its assembly.
Selon une troisième variante de réalisation de l'invention, représentée aux figures 3 et 4 des dessins annexés, l'axe de commande 4 peut également comporter un ou plusieurs paliers de guidage en rotation 11 prémontés, emprisonnés et bloqués dans des paliers supports 12 formés lors de l'assemblage des deux parties 2' et 2" ou 1 " et 1 '" composant la ou les portion(s) de conduits 2 ou la pièce 1.According to a third alternative embodiment of the invention, shown in Figures 3 and 4 of the accompanying drawings, the control shaft 4 may also include one or more pre-assembled rotary guide bearings 11, trapped and locked in support bearings 12 formed during the assembly of the two parts 2 ′ and 2 ″ or 1 ″ and 1 ″ composing the portion (s) of conduits 2 or the part 1.
Les paliers de guidage en rotation prémontés 11 , par exemple sous forme de roulements à billes ou à aiguilles, peuvent éventuellement être totalement encapsulés dans les paliers supports 12 de manière à les protéger et à les bloquer en translation, ce qui rendra superflues les butéesThe pre-assembled rotational guide bearings 11, for example in the form of ball or needle bearings, may possibly be completely encapsulated in the support bearings 12 so as to protect them and block them in translation, which will make the stops redundant
10.10.
Il est bien entendu évident pour l'homme du métier que les fonctions de support et de guidage de l'axe de commande 4 pourront être réalisées soit en n'utilisant qu'une seule des solutions décrites ci-dessus, soit en les panachant.It is of course obvious to a person skilled in the art that the support and guiding functions of the control axis 4 can be achieved either by using only one of the solutions described above, or by mixing them.
L'ensemble axe de commande 4 / clapet(s) 3 pourra être obtenu soit par fixation (par exemple soudure, vissage, clipsage, pliage ou autres) de clapets métalliques sur un axe (métallique ou non), soit par surmoulage des clapets sur un axe métallique ou plastique (les protubérances 9 de guidage ou les paliers 11 étant mis en place sur l'axe avant ou après le surmoulage), ou encore par moulage d'un seul tenant d'un ensemble axe / clapets en matériau plastique.The entire control shaft 4 / valve (s) 3 can be obtained either by fixing (for example welding, screwing, clipping, folding or other) of metal valves on an axis (metallic or not), or by overmolding the valves on a metal or plastic axis (the protuberances 9 for guiding or the bearings 11 being placed on the axis before or after the overmolding), or by molding in one piece of a plastic shaft / valves assembly.
L'assemblage entre les parties 2' et 2" constitutives de la portion de conduit 2 et/ou entre les parties 1 " et 1 '" constitutives de la pièce 1 pourra également être réalisé de différentes manières, telles que par exemple liaison mécanique, collage, soudure ou autres, en fonction de la nature du matériau constituant lesdites parties 2' et 2" ou 1 " et 1 '".The assembly between the parts 2 'and 2 "constituting the portion of conduit 2 and / or between the parts 1" and 1' "constituting the part 1 may also be carried out in different ways, such as for example mechanical connection, bonding, welding or other, depending on the nature of the material constituting said parts 2 'and 2 "or 1" and 1 ".
Il convient également de noter que l'axe de commande 4 pourra être situé de manière centrale par rapport au(x) clapet(s) 3 ou, le cas échéant, excentré ou décentré, de manière à ne pas perturber le flux en position d'ouverture ou de passage maximum desdits clapets 3 (voir à ce sujet la demande de brevet français n° 99 02531 au nom de la demanderesse).It should also be noted that the control axis 4 may be located centrally with respect to the valve (s) 3 or, if appropriate, eccentric or off-center, so as not to disturb the flow in position d 'maximum opening or passage of said valves 3 (on this subject see French patent application No. 99,02531 in the name of the applicant).
Toutefois, selon un mode de réalisation préférentiel de l'invention, les deux parties 2' et 2" ou 1 " et l'" constitutives de la portion de conduit 2 et/ou de la pièce 1 sont réalisées en matériau thermoplastique et sont assemblées par soudure par vibration, les plans du joint étant configurés et disposés de telle manière qu'ils autorisent, le cas échéant, la mise en place de l'ensemble axe de commande 4 / clapet(s) 3 sur ou dans l'une au moins desdites deux parties ou entre elles.However, according to a preferred embodiment of the invention, the two parts 2 ′ and 2 ″ or 1 ″ and the ″ constituting the portion of conduit 2 and / or the part 1 are made of thermoplastic material and are assembled by vibration welding, the planes of the joint being configured and arranged in such a way that they authorize, if necessary, the installation of the control shaft 4 / valve (s) 3 assembly on or in one at less of said two parties or between them.
L'étanchéité au niveau des passages de l'axe 4 pourra être obtenue par formation d'une garniture au moment de l'assemblage, par un élément d'étanchéité séparé rapporté avant ou après assemblage ou en rapportant une partie ou une pièce 17 additionnelle par soudure par vibrations au niveau de la face externe du ou des passage(s) concerné(s), cette partie additionnelle pouvant, le cas échéant, renfermer un palier de support et de guidage 6, 12 axial ement étanche.Sealing at the passages of the axis 4 can be obtained by forming a lining at the time of assembly, by a separate sealing element added before or after assembly or by adding an additional part or part 17 by vibration welding at the external face of the passage (s) concerned, this additional part possibly, if necessary, enclosing a support and guide bearing 6, 12 axially sealed.
La mise en œuvre de cette troisième solution est représentée plus particulièrement aux figures 8 et 9 des dessins annexés. Comme le montrent ces dernières, le passage 15' est tout d'abord formé lors de l'assemblage des pièces 1" et F" par superposition au niveau des portions de leurs cordons de soudure respectifs opposées 19' et 19" (figures 8A et 8B), de manière à obtenir un passage 15' étanche transversalement et dont l'ouverture débouchante externe est entourée (sur la face externe de la pièce 1) de deux portions de cordons semi-circulaires (figure 8C) formant ensemble un cordon circulaire entourant ladite ouverture. On applique ensuite le cordon circulaire 19'" coïncident d'une pièce 17 étanche sur les deux cordons semi-circulaires 19' et 19" et on réalise leur assemblage par soudage par vibrations (figure 8D : vue en élévation latérale), pour obtenir un ensemble de pièces 1 et 17 étanche. La présente invention a également pour objet un collecteur d'admission ou répartiteur 1 comprenant au moins une, et préférentiellement plusieurs, tubulures d'admission 2, sous forme de portions de conduits destinées à relier la chambre du collecteur ou répartiteur aux culasses, et constitué par l'assemblage d'au moins deux parties 1 ", 1 '" complémentaires en matériau thermoplastique par soudage par vibration (voir figures 3 à 5 et 7 à 9).The implementation of this third solution is shown more particularly in Figures 8 and 9 of the accompanying drawings. As the latter show, the passage 15 ′ is first formed during the assembly of the parts 1 ″ and F ″ by superposition at the level of the portions of their respective opposite weld beads 19 ′ and 19 ″ (FIGS. 8A and 8B), so as to obtain a passage 15 ′ transversely sealed and the external opening of which is surrounded (on the external face of the part 1) by two portions of semicircular cords (FIG. 8C) together forming a circular cord surrounding said opening. Then apply the circular bead 19 '"coinciding with a sealed part 17 on the two semi-circular cords 19' and 19" and assemble them by vibration welding (FIG. 8D: side elevation view), to obtain a set of parts 1 and 17 waterproof. The present invention also relates to an intake manifold or distributor 1 comprising at least one, and preferably several, intake pipes 2, in the form of portions of conduits intended to connect the chamber of the manifold or distributor to the cylinder heads, and constituted by assembling at least two complementary parts 1 ", 1 '" in thermoplastic material by vibration welding (see FIGS. 3 to 5 and 7 to 9).
Ce collecteur ou répartiteur d'admission 1 est caractérisé en ce qu'au moins certaines des tubulures 2 ou ouvertures de passage de ces dernières, et préférentiellement toutes, comportent un dispositif de régulation tel que décrit ci-dessus, intégré dans la structure dudit collecteur ou répartiteur 1 et formant un ensemble de régulation d'écoulement comprenant plusieurs clapets 3 montés ou formés sur un unique axe de commande 4 traversant lesdites tubulures d'admission 2 ou ouvertures de passage et pourvu à l'une de ses extrémités d'un moyen de solidarisation 13, notamment au moins d'accouplement en rotation, avec un mécanisme de transmission 14 relié à un actionneur 14' ou avec un actionneur directement.This intake manifold or distributor 1 is characterized in that at least some of the pipes 2 or passage openings of the latter, and preferably all, include a regulation device as described above, integrated into the structure of said manifold or distributor 1 and forming a flow regulation assembly comprising several valves 3 mounted or formed on a single control axis 4 passing through said intake pipes 2 or passage openings and provided at one of its ends with a means of securing 13, in particular at least of coupling in rotation, with a transmission mechanism 14 connected to an actuator 14 'or with an actuator directly.
Ledit actionneur 14' pourra être de nature pneumatique, électrique, mécanique ou autre.Said actuator 14 ′ may be of pneumatic, electrical, mechanical or other nature.
Selon un mode de réalisation préférentiel de l'invention, l'axe de commande 4 muni de clapets 3 s'étend transversalement à proximité de l'une des extrémités des tubulures d'admission 2, à savoir au niveau de sa zone de jonction avec la paroi l' de la chambre du collecteur 1 ou au niveau de sa zone de jonction avec la platine de fixation sur les culasses, les paliers de support 12 et, le cas échéant, de guidage 6, 7, ainsi que les butées de blocage en translation 10 de l'axe de commande 4, étant au moins partiellement, et préférentiellement en totalité, formés sur ladite paroi l' de la chambre du collecteur ou sur ladite platine de fixation.According to a preferred embodiment of the invention, the control axis 4 provided with valves 3 extends transversely near one of the ends of the intake pipes 2, namely at its junction zone with the wall l of the manifold chamber 1 or at its junction zone with the mounting plate on the cylinder heads, the support bearings 12 and, where appropriate, guide bearings 6, 7, as well as the locking stops in translation 10 of the control axis 4, being at least partially, and preferably entirely, formed on said wall l 'of the manifold chamber or on said fixing plate.
Ces butées 10 pourront être formées soit par des protubérances de la paroi l' (figures 3), soit par des renfoncements de cette dernière (figures 5).These stops 10 may be formed either by protrusions of the wall l '(Figures 3), or by recesses of the latter (Figures 5).
Ledit ensemble axe de commande 4 / clapets 3 pourra notamment être situé au niveau de l'interface tubulure d'admission 2 / chambre de collecteur 1 ou de l'interface tubulure d'admission 2 / culasses. Dans le premier cas en particulier, ledit ensemble pourra être pris en sandwich entre deux parties 1 " et 1 '" formant la chambre dudit collecteur ou répartiteur et présentant un plan ou une ligne d'assemblage ou de jonction traversant ladite région d'interface tubulure / collecteur au niveau des ouvertures débouchantes desdites tubulures dans la chambre dudit collecteur (figures 3 à 5).Said control shaft 4 / valves 3 assembly may in particular be located at the intake manifold interface 2 / manifold chamber 1 or intake manifold 2 / cylinder head interface. In the first case in particular, said assembly could be sandwiched between two parts 1 "and 1 '" forming the chamber of said manifold or distributor and having a plane or an assembly or junction line crossing said tubing interface region. / manifold at the level of the openings of said pipes in the chamber of said manifold (FIGS. 3 to 5).
Conformément à une variante de réalisation de l'invention, représentée notamment aux figures 3 à 5, 7 et 9 des dessins annexés, l'axe de commande 4 traverse librement et sans contact les parois des tubulures d'admission 2 concernées ou s'étend à travers les ouvertures desdites tubulures 2 débouchant dans la chambre du collecteur 1, l'assemblage des parties constitutives 1 ", 1 '" du collecteur 1 réalisant une enceinte étanche 15 autour des zones de jonction de l'ensemble desdites tubulures d'admission 2 avec la paroi l' du collecteur 1 ou de débouchement desdites tubulures 2 dans la chambre du collecteur 1, la pièce formée par l'ensemble axe de commande 4 / clapets 3 étant montée par enclenchement ou encliquetage dans des paliers 6, 12 préformés sur la paroi l' de l'une 1 " des pièces 1", l'" formant le collecteur 1, au niveau de protubérances cylindriques 9 ou de portions de paliers 11 formées ou rapportées sur l'axe 4, l'autre l'" desdites pièces 1 ", l'" empêchant éventuellement toute extraction de l'axe 4 desdits paliers 6, 12 après assemblage des deux pièces 1" et l'".According to an alternative embodiment of the invention, shown in particular in Figures 3 to 5, 7 and 9 of the accompanying drawings, the control shaft 4 freely and without contact passes through the walls of the intake pipes 2 concerned or extends through the openings of said pipes 2 opening into the chamber of the manifold 1, the assembly of the constituent parts 1 ", 1 '" of the manifold 1 forming a sealed enclosure 15 around the junction zones of all of said intake pipes 2 with the wall l ′ of the collector 1 or of the opening of the said pipes 2 in the chamber of the collector 1, the part formed by the control shaft 4 / valves 3 assembly being mounted by engagement or snap-fastening in bearings 6, 12 preformed on the wall l 'of one 1 "of parts 1", l "forming the collector 1, at the level of cylindrical protuberances 9 or portions of bearings 11 formed or attached to the axis 4, the other l" of said 1 "pieces, the" emp possibly preventing any extraction of the axis 4 of said bearings 6, 12 after assembly of the two parts 1 "and the".
Conformément à un premier mode de réalisation de l'invention, représenté notamment aux figures 3, 4 et 5 des dessins annexés, ladite enceinte étanche 15 est complétée au niveau du passage 15' pour la portion d'axe de commande 4 sortante portant le moyen de solidarisation 13 ou pour la tige de manœuvre 14" rentrante du mécanisme de transmission 14, par un bouchon axial annulaire 16, emmanché à chaud ou à force ou soudé au niveau dudit passage 15' (ce bouchon portant éventuellement des moyens d'étanchéification du passage de l'axe 4 ou assurant par lui-même ladite étanchéité tout en autorisant la rotation de la tige de manœuvre 14" et/ou du mécanisme 14).According to a first embodiment of the invention, shown in particular in Figures 3, 4 and 5 of the accompanying drawings, said sealed enclosure 15 is completed at the level of the passage 15 ′ for the outgoing control axis portion 4 carrying the means for securing 13 or for the operating rod 14 "returning from the transmission mechanism 14, by an annular axial plug 16, hot-pressed or force-fitted or welded at the level of said passage 15 '(this plug possibly carrying means for sealing the passage of the axis 4 or ensuring by itself said tightness while allowing the rotation of the operating rod 14 "and / or of the mechanism 14).
Selon un autre mode de réalisation, représenté notamment à la figure 9 des dessins annexés, l'enceinte étanche 15 formée par l'assemblage des deux parties 1 " et l'" du collecteur 1 est fermée, au niveau du passage 15' pour la portion d'axe de commande 4 sortante portant le moyen de solidarisation 13 ou pour la tige de manœuvre 14" rentrante du mécanisme de transmission 14, par la solidarisation, par soudage par vibrations, au niveau de l'ouverture ou de la face extérieure dudit passage 15', d'une troisième partie creuse 17 renfermant au moins une composante du mécanisme de transmission 14 et/ou au moins un palier 6, 12 à étanchéité axiale, cette troisième partie 17 étant solidarisée après formation de la pièce 1.According to another embodiment, shown in particular in Figure 9 of the accompanying drawings, the sealed enclosure 15 formed by the assembly of the two parts 1 "and the" of the manifold 1 is closed, at the passage 15 'for the outgoing control pin portion 4 carrying the securing means 13 or for the re-entrant operating rod 14 "of the mechanism transmission 14, by securing, by vibration welding, at the opening or the external face of said passage 15 ', a third hollow portion 17 containing at least one component of the transmission mechanism 14 and / or at least one bearing 6, 12 with axial sealing, this third part 17 being joined after the part 1 has been formed.
De manière préférentielle et comme le montrent les figures 5A, 5B et 5C des dessins annexés, l'ensemble axe 4 / clapets 3 s'étend entièrement dans l'enceinte étanche 15, l'axe 4 ne traversant pas les zones ou lignes d'assemblage par soudage, les deux clapets 3 aux extrémités opposées de l'axe 4 étant montés en porte-à-faux et le clapet 3 situé à proximité du passage 15' étant pourvu d'un canal borgne axial 18, par exemple à section rectangulaire, pour la réception par emmanchement de l'extrémité de la tige de manœuvre 14" et formant le moyen de solidarisation 13.Preferably and as shown in FIGS. 5A, 5B and 5C of the appended drawings, the axis 4 / valves 3 assembly extends entirely in the sealed enclosure 15, the axis 4 not crossing the zones or lines of assembly by welding, the two valves 3 at the opposite ends of the axis 4 being mounted in cantilever and the valve 3 located near the passage 15 'being provided with an axial blind channel 18, for example with rectangular section , for receiving by fitting the end of the operating rod 14 "and forming the securing means 13.
Comme le montre la figure 3A des dessins annexés, le moyen de solidarisation 13 peut, en variante, aussi se présenter sous la forme d'un prolongement à section carrée de l'axe de commande 4, relié à une pièce femelle présentant un manchon de réception de forme complémentaire (par exemple par clippage, collage, emmanchement à force et/ou à chaud ou analogue) faisant partie du mécanisme de transmission 14 relié à un actionneur.As shown in Figure 3A of the accompanying drawings, the securing means 13 may, alternatively, also be in the form of a square section extension of the control shaft 4, connected to a female part having a sleeve reception of complementary shape (for example by clipping, gluing, force fitting and / or hot fitting or the like) forming part of the transmission mechanism 14 connected to an actuator.
Le mécanisme d'actionnement de l'axe de commande 4 pourra autoriser le déplacement des clapets 3 entre une position d'ouverture et une position de fermeture (totales ou non), les positions extrêmes étant définies par une ou plusieurs butées mécaniques liées à l'axe de commande et préférentiellement situées à proximité de l'actionneur 14'. Le déplacement entre les positions d'ouverture et de fermeture pourra s'effectuer soit en tout ou rien, soit de manière proportionnelle. Ainsi, la liaison entre l'axe de commande 4 et le mécanisme de transmission 14 pourra s'effectuer soit à l'extérieur, soit préférentiellement à l'intérieur de l'enceinte étanche formée lors de l'assemblage des deux parties constitutives 1 " et 1 '" du collecteur 1, la pièce femelle ou mâle précitée s' étendant alors, de manière étanche, à travers un orifice de passage 15' correspondant.The actuating mechanism of the control axis 4 may authorize the movement of the valves 3 between an open position and a closed position (total or not), the extreme positions being defined by one or more mechanical stops linked to the 'control axis and preferably located near the actuator 14'. The movement between the open and closed positions can be done either all or nothing, or proportionally. Thus, the connection between the control axis 4 and the transmission mechanism 14 can take place either outside, or preferably inside the sealed enclosure formed during the assembly of the two component parts 1 " and 1 '"of the manifold 1, the aforementioned female or male part then extending, in leaktight manner, through a corresponding passage orifice 15'.
Par ailleurs, la présente invention a également pour objet un procédé de fabrication d'un collecteur ou répartiteur d'admission 1 tel que décrit ci-dessus, à partir d'au moins deux parties 1 ", 1 '" en matériau thermoplastique.Furthermore, the present invention also relates to a method of manufacturing an intake manifold or distributor 1 such that described above, from at least two parts 1 ", 1 '" of thermoplastic material.
Ce procédé consiste essentiellement à fournir une première partie 1 " d'un collecteur d'admission 1 , à mettre en place, sur ou dans cette première partie 1" et dans des renfoncements 5, 5' et/ou des portions de palier 6, 12 de support et/ou de guidage adaptés, un axe de commande comportant plusieurs clapets 3 disposés chacun dans une ouverture de passage ou un passage de partie 2' de tubulure d'admission 2 correspondant, à fournir au moins une seconde partie l'" du collecteur d'admission 1 comportant, le cas échéant, les parties complémentaires 2" des tubulures d'admission 2 et à la ou les disposer en position d'assemblage avec la première partie 1 " en emprisonnant ou prenant en sandwich l'axe de commande 4 avec les clapets 3 et, enfin, à assembler par soudage par vibration lesdites au moins deux parties 1 ", l'" de collecteur d'admission 1. La seconde partie 1 '" pourra soit participer directement à l'emprisonnement de l'ensemble axe 4 / clapets 3 en étant en contact direct avec ledit ensemble (prise en sandwich et pincement de l'axe 4 entre les deux parties 1" et 1 '", éventuellement au niveau de la ligne d'assemblage entre les deux partie 2' et 2" des portions de conduit 2), soit constituer uniquement une portion de couverture ou un couvercle par rapport à la première partie 1 ", cette dernière assurant, le cas échéant, seul le support et le guidage en rotation de l'ensemble axe 4 / clapets 3.This process essentially consists in supplying a first part 1 "of an intake manifold 1, to be installed on or in this first part 1" and in recesses 5, 5 ′ and / or bearing portions 6, 12 adapted support and / or guide, a control axis comprising several valves 3 each arranged in a passage opening or a passage of part 2 'of intake manifold 2 corresponding, to provide at least a second part " of the intake manifold 1 comprising, where appropriate, the complementary parts 2 "of the intake pipes 2 and at or placing them in the assembly position with the first part 1" by trapping or sandwiching the axis of control 4 with the valves 3 and, finally, to assemble by vibration welding said at least two parts 1 ", the" intake manifold 1. The second part 1 "can either participate directly in the imprisonment of the axis 4 / valves 3 while being in contact t direct with said assembly (sandwiched and pinching of axis 4 between the two parts 1 "and 1", possibly at the level of the assembly line between the two parts 2 "and 2" of the portions of conduit 2 ), or constitute only a cover portion or a cover with respect to the first part 1 ", the latter ensuring, if necessary, only the support and the guiding in rotation of the axis 4 / valves 3 assembly.
Ainsi, de manière avantageuse, comme le montrent les figures 3 et 5 des dessins annexés, le montage de l'ensemble axe 4 / clapets 3 est réalisé par emboîtement ou encliquetage sur ladite première partie 1 " et l'assemblage des deux parties l "et l'" réalise une enceinte étanche 15 autour dudit ensemble à l'exception d'un passage d'entraînement 15', ce dernier étant rendu étanche lors du couplage du mécanisme de transmission 14 avec l'axe de commande 4. II résulte de ce qui précède que la base de l'invention consiste à procéder, dans un premier temps, au montage de l'ensemble axe de commande 4 / clapet(s) 3 sur une partie 1", 2' ou entre deux parties 1" et l'", 2' et 2" (ledit ensemble étant éventuellement maintenu en place par des portions de palier 5, 5', 6 ou 11) puis, dans un deuxième temps, à réaliser l'opération d'assemblage des deux parties 1" et 1 '", 2' et 2" constitutives de la portion de conduit 2, du collecteur ou répartiteur 1 ou de tout autre objet ou structure destiné(e) à comporter un dispositif de régulation selon l'invention.Thus, advantageously, as shown in Figures 3 and 5 of the accompanying drawings, the assembly of the axis 4 / valves 3 assembly is achieved by fitting or snapping onto said first part 1 "and the assembly of the two parts l" and the "realizes a sealed enclosure 15 around said assembly with the exception of a drive passage 15 ', the latter being made leaktight when coupling the transmission mechanism 14 with the control axis 4. It results from the foregoing that the basis of the invention consists in first of all mounting the control pin 4 / valve (s) 3 assembly on a part 1 ", 2 'or between two parts 1" and the ", 2 'and 2" (said assembly possibly being held in place by bearing portions 5, 5', 6 or 11) then, in a second step, to carry out the operation of assembling the two parts 1 "and 1 '", 2' and 2 "constituting the portion of conduit 2, the collector or distributor 1 or any other object or structure intended to include a regulation device according to the invention.
L'invention permet d'aboutir à une solution technique réduisant au minimum les opérations nécessaires à la mise en place et au montage du dispositif de régulation (sans interférer avec le procédé de fabrication existant et sans le rallonger), peu encombrante et aboutissant à une intégration complète dudit dispositif de régulation (protection face aux chocs), tout en garantissant une étanchéité fiable.The invention makes it possible to arrive at a technical solution reducing to the minimum the operations necessary for the installation and the mounting of the regulation device (without interfering with the existing manufacturing process and without lengthening it), compact and leading to a full integration of said regulating device (protection against shocks), while guaranteeing a reliable seal.
Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux dessins annexés. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention. Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims

R E V E N D I C A T I O N S
1. Dispositif de régulation de l'écoulement d'un fluide, notamment gazeux, dans au moins une portion de conduit, un passage ou similaire au moyen d'un clapet ou d'un organe d'obturation rotatif analogue, porté par un axe de commande, caractérisé en ce que chaque ensemble clapet (3) / axe de commande (4) est intégré dans la structure de la portion de conduit (2) concernée ou dans la structure de la pièce (1) comprenant au moins une portion de conduit (2), au niveau d'une ouverture de passage, en étant emprisonné, avec faculté de rotation, entre deux parties complémentaires (2', 2" ou 1 ", 1 '") formant par assemblage, par soudage par friction ou vibration, ladite portion de conduit (2) ou ladite pièce (1) et en étant montés dans des renfoncements de réception (5, 5') correspondants ménagés dans les parois des portions de conduits (2) et/ou dans un ou des palier(s) séparé(s) ou déporté(s) correspondant(s) (6) présent(s) sur l'une au moins des parties (1 ", l'") formant la pièce (1). 1. Device for regulating the flow of a fluid, in particular a gaseous fluid, in at least one portion of a conduit, a passage or the like by means of a valve or of a similar rotary shutter member, carried by an axis control, characterized in that each valve (3) / control pin (4) assembly is integrated in the structure of the duct portion (2) concerned or in the structure of the part (1) comprising at least one portion of conduit (2), at a passage opening, being trapped, with faculty of rotation, between two complementary parts (2 ', 2 "or 1", 1 "") forming by assembly, by friction welding or vibration, said portion of duct (2) or said part (1) and while being mounted in corresponding receiving recesses (5, 5 ′) formed in the walls of the portions of ducts (2) and / or in one or more bearings (s) separated (s) or deported (s) corresponding (s) (6) present (s) on at least one of the parts (1 ", l '") fo rmant the part (1).
2. Dispositif selon la revendication 1, caractérisé en ce que le support de l'axe de commande (4) et son guidage en rotation sont assurés, au moins en partie, par au moins un palier (6) extérieur à la paroi ou aux parois de la ou des portion(s) de conduit(s) (2) ou de la pièce (1) considéré(s), le cas échéant formé par assemblage de deux parties complémentaires.2. Device according to claim 1, characterized in that the support of the control shaft (4) and its guiding in rotation are ensured, at least in part, by at least one bearing (6) external to the wall or to the walls of the portion (s) of conduit (s) (2) or of the part (1) considered, if necessary formed by assembling two complementary parts.
3. Dispositif selon la revendication 2, caractérisé en ce que l'axe de commande (4) est monté avec guidage en rotation au niveau d'un ou de plusieurs paliers (6) déporté(s) par rapport aux parois du ou des conduit(s) (2) et formé(s) sur l'une (1 ") des deux parties (1 ", l'") de la pièce (1), la fixation et le maintien étant obtenus par enclenchement ou encliquetage élastique dudit axe (4) dans lesdits paliers (6, 12) et ledit axe (4) étant emprisonné entre lesdites parties (1 ", l'") sans qu'il y ait contact avec l'autre (F") desdites deux parties (1", F").3. Device according to claim 2, characterized in that the control axis (4) is mounted with guiding in rotation at one or more bearings (6) offset (s) relative to the walls of the duct or ducts (s) (2) and formed (s) on one (1 ") of the two parts (1", l ") of the part (1), the fixing and the maintenance being obtained by snap-fitting or snap-fitting of said axis (4) in said bearings (6, 12) and said axis (4) being trapped between said parts (1 ", l '") without there being contact with the other (F ") of said two parts ( 1 ", F").
4. Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que l'axe de commande (4) est pris en sandwich entre les parties (2', 2") constitutives de ladite au moins une portion de conduit (2) ou de ladite pièce (1), au niveau de la zone d'assemblage et de jonction desdites parties (2', 2" ou 1 ", F"). 4. Device according to any one of claims 1 and 2, characterized in that the control axis (4) is sandwiched between the parts (2 ', 2 ") constituting said at least one portion of conduit ( 2) or of said part (1), at the level of the assembly and junction zone of said parts (2 ', 2 "or 1", F ").
5. Dispositif selon l'une quelconque des revendications 1, 2 et 4, caractérisé en ce qu'au moins un des paliers de support et de guidage (7) en rotation de l'axe de commande (4) est formé par coopération des renfoncements de réception opposés (5, 5') ménagés dans les zones de jonction des parois des deux parties (2', 2" ou 1 ", F") formant la ou les portion(s) de conduit(s) (2) ou la pièce (1), ledit ou lesdits paliers de support et de guidage (7) étant éventuellement rendus étanches avec ou sans interposition d'une pièce d'étanchéification (8) rapportée.5. Device according to any one of claims 1, 2 and 4, characterized in that at least one of the support and guide bearings (7) in rotation of the control axis (4) is formed by cooperation of Opposite receiving recesses (5, 5 ') formed in the areas of junction of the walls of the two parts (2', 2 "or 1", F ") forming the portion (s) of conduit (s) (2) or the part (1), said one or said support and guide bearings (7) being possibly sealed with or without the interposition of an attached sealing part (8).
6. Dispositif selon l'une quelconque des revendications 2 à 5, caractérisé en ce que l'axe de commande (4) comporte une ou plusieurs protubérances cylindriques (9) ou annulaires (9'), formées d'un seul tenant avec ledit axe (4) ou rapportées sur ce dernier par surmoulage ou montage et destinées à coopérer avec les paliers de support et de guidage (6, 7) ou avec des butées (10) de blocage en translation dudit axe de commande (4). 6. Device according to any one of claims 2 to 5, characterized in that the control shaft (4) comprises one or more cylindrical (9) or annular (9 ') protrusions, formed integrally with said axis (4) or attached to the latter by overmolding or mounting and intended to cooperate with the support and guide bearings (6, 7) or with stops (10) for locking in translation of said control axis (4).
7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'axe de commande (4) comporte un ou plusieurs paliers de guidage en rotation (11) prémontés, emprisonnés dans des paliers supports (12) formés lors de l'assemblage des deux parties (2' et 2" ou 1" et 1 '") constituant la ou les portion(s) de conduits (2) ou la pièce (1). 7. Device according to any one of claims 1 to 6, characterized in that the control pin (4) comprises one or more pre-assembled rotational guide bearings (11) trapped in support bearings (12) formed during of the assembly of the two parts (2 'and 2 "or 1" and 1 "" constituting the portion (s) of conduits (2) or the part (1).
8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les deux parties (2' et 2" ou 1 " et F") constitutives de la portion de conduit (2) et/ou de la pièce (1) sont réalisées en matériau thermoplastique, l'étanchéité au niveau des passages de l'axe (4) étant obtenue par formation d'une garniture au moment de l'assemblage par soudage par vibration, par un élément d'étanchéité séparé rapporté avant ou après assemblage ou en rapportant une partie (17) additionnelle par soudure par vibrations au niveau de la face externe du passage concerné, cette partie additionnelle pouvant, le cas échéant, renfermer un palier de support et de guidage (6, 12) axialement étanche. 8. Device according to any one of claims 1 to 7, characterized in that the two parts (2 'and 2 "or 1" and F ") constituting the duct portion (2) and / or the part ( 1) are made of thermoplastic material, the seal at the level of the passages of the axis (4) being obtained by forming a gasket at the time of assembly by vibration welding, by a separate sealing element attached before or after assembly or by adding an additional part (17) by vibration welding at the external face of the passage concerned, this additional part possibly, if necessary, enclosing an axially sealed support and guide bearing (6, 12) .
9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'il comprend un ensemble clapets (3) / axe (4) s'étendant à plusieurs portions de conduits (2) ou ouvertures de passage de la pièce (1) comprenant chacune un clapet (3), tous ces clapets (3) étant montés ou formés sur un axe de commande (4) unique. 9. Device according to any one of claims 1 to 8, characterized in that it comprises a set of valves (3) / axis (4) extending to several portions of conduits (2) or openings for passage of the part (1) each comprising a valve (3), all these valves (3) being mounted or formed on a single control axis (4).
10. Collecteur d'admission comprenant au moins une, et préférentiellement plusieurs, tubulures d'admission, sous forme de portions de conduits destinées à relier la chambre du collecteur aux culasses, et constitué par l'assemblage d'au moins deux parties complémentaires en matériau thermoplastique par soudage par vibration, caractérisé en ce qu'au moins certaines des tubulures (2) ou ouvertures de passage de ces dernières, et préférentiellement toutes, comportent un dispositif de régulation selon l'une quelconque des revendications 1 à 9, formant un ensemble de régulation d'écoulement comprenant plusieurs clapets (3) montés ou formés sur un unique axe de commande (4) traversant lesdites tubulures d'admission (2) ou ouvertures de passage et pourvu à l'une de ses extrémités d'un moyen de solidarisation (13), notamment au moins d'accouplement en rotation, avec un mécanisme de transmission (14) relié à un actionneur (14') ou avec un actionneur directement.10. Intake manifold comprising at least one, and preferably several, intake manifolds, in the form of portions of conduits intended to connect the manifold chamber to the cylinder heads, and constituted by the assembly of at least two complementary parts of thermoplastic material by vibration welding, characterized in that at least some of the pipes (2) or passage openings of the latter, and preferably all, include a regulation device according to any one of claims 1 to 9, forming a flow regulation assembly comprising several valves (3) mounted or formed on a single control axis (4) passing through said intake pipes (2) or passage openings and provided at one of its ends with a fastening means (13), in particular at least of rotational coupling, with a transmission mechanism (14) connected to an actuator (14 ') or with an actuator directly.
11. Collecteur d'admission selon la revendication 10, caractérisé en ce que l'axe de commande (4) muni de clapets (3) s'étend transversalement à proximité de l'une des extrémités des tubulures d'admission (2), à savoir au niveau de sa zone de jonction avec la paroi (F) de la chambre du collecteur (1) ou au niveau de sa zone de jonction avec la platine de fixation sur les culasses, les paliers de support (12) et, le cas échéant, de guidage (6, 7), ainsi que les butées de blocage en translation (10) de l'axe de commande (4), étant au moins partiellement, préférentiellement en totalité, formés sur ladite paroi (F) de la chambre du collecteur (1) ou sur ladite platine de fixation.11. Intake manifold according to claim 10, characterized in that the control shaft (4) provided with valves (3) extends transversely near one of the ends of the intake pipes (2), namely at its junction zone with the wall (F) of the manifold chamber (1) or at its junction zone with the mounting plate on the cylinder heads, the support bearings (12) and, the where appropriate, of guide (6, 7), as well as the stops for locking in translation (10) of the control axis (4), being at least partially, preferably entirely, formed on said wall (F) of the manifold chamber (1) or on said fixing plate.
12. Collecteur d'admission selon la revendication 11, caractérisé en ce que l'axe de commande (4) traverse librement et sans contact les parois des tubulures d'admission (2) concernées ou s'étend à travers les ouvertures desdites tubulures (2) débouchant dans la chambre du collecteur (1), l'assemblage des parties constitutives (1", F") du collecteur (1) réalisant une enceinte étanche (15) autour des zones de jonction de l'ensemble desdites tubulures d'admission (2) avec la paroi (F) du collecteur (1) ou de débouchement desdites tubulures (2) dans la chambre du collecteur (1), la pièce formée par l'ensemble axe de commande (4) / clapets (3) étant montée par enclenchement ou encliquetage dans des paliers (6, 12) préformés sur la paroi (F) de l'une (1") des pièces (1 ", F") formant le collecteur (1), au niveau de protubérances cylindriques (9) ou de portions de paliers (11) formées ou rapportées sur l'axe (4), l'autre (F") desdites pièces (1", F") empêchant éventuellement toute extraction de l'axe (4) desdits paliers (6, 9) après assemblage des deux pièces (1" et F"). 12. Intake manifold according to claim 11, characterized in that the control axis (4) passes freely and without contact the walls of the intake pipes (2) concerned or extends through the openings of said pipes ( 2) opening into the manifold chamber (1), the assembly of the constituent parts (1 ", F") of the manifold (1) forming a sealed enclosure (15) around the junction zones of all of said tubes of inlet (2) with the wall (F) of the manifold (1) or opening of said pipes (2) in the manifold chamber (1), the part formed by the control shaft (4) / valves (3) assembly being mounted by engagement or latching in bearings (6, 12) preformed on the wall (F) of one (1 ") of the parts (1", F ") forming the manifold (1), at the level of cylindrical protuberances (9) or portions of bearings (11) formed or attached to the axis (4), the other (F ") of said parts (1", F ") possibly preventing ement any extraction of the axis (4) of said bearings (6, 9) after assembly of the two parts (1 "and F").
13. Collecteur d'admission selon la revendication 12, caractérisé en ce que ladite enceinte étanche (15) est complétée au niveau du passage (15') pour la portion d'axe de commande (4) sortante portant le moyen de solidarisation (13) ou pour la tige de manœuvre (14") rentrante du mécanisme de transmission (14), par un bouchon axial annulaire (16), emmanché à chaud ou à force ou soudé au niveau dudit passage (15').13. Intake manifold according to claim 12, characterized in that said sealed enclosure (15) is completed at the passage (15 ') for the portion of the control axis (4) outgoing carrying the securing means (13 ) or for the re-entrant operating rod (14 ") of the transmission mechanism (14), by an annular axial plug (16), hot-pressed or force-fitted or welded at the level of said passage (15 ').
14. Collecteur d'admission selon la revendication 12, caractérisé en ce que l'enceinte étanche (15) formée par l'assemblage des deux parties (1 " et F") du collecteur (1) est fermée, au niveau du passage (15') pour la portion d'axe de commande (4) sortante portant le moyen de solidarisation (13) ou pour la tige de manœuvre (14") rentrante du mécanisme de transmission (14), par la solidarisation, par soudage par vibrations, au niveau de l'ouverture ou de la face extérieure dudit passage (15'), d'une troisième partie creuse (17) renfermant au moins une composante du mécanisme de transmission (14) et/ou au moins un palier (6, 12) à étanchéité axiale.14. Intake manifold according to claim 12, characterized in that the sealed enclosure (15) formed by the assembly of the two parts (1 "and F") of the manifold (1) is closed, at the passage ( 15 ') for the outgoing portion of the control shaft (4) carrying the securing means (13) or for the re-entrant operating rod (14 ") of the transmission mechanism (14), by securing, by vibration welding , at the opening or on the external face of said passage (15 ′), a third hollow part (17) containing at least one component of the transmission mechanism (14) and / or at least one bearing (6, 12) with axial sealing.
15. Collecteur d'admission selon l'une quelconque des revendications 13 et 14, caractérisé en ce que l'ensemble axe (4) / clapets (3) s'étend entièrement dans l'enceinte étanche (15), l'axe (4) ne traversant pas les zones ou lignes d'assemblage par soudage, en ce que les deux clapets (3) aux extrémités opposées de l'axe (4) sont montés en porte-à-faux et en ce que le clapet (3) situé à proximité du passage (15') est pourvu d'un canal borgne axial (18), par exemple à section rectangulaire, pour la réception par emmanchement de l'extrémité de la tige de manœuvre (14"). 15. Intake manifold according to any one of claims 13 and 14, characterized in that the axis (4) / valves (3) assembly extends entirely in the sealed enclosure (15), the axis ( 4) not crossing the zones or lines of assembly by welding, in that the two valves (3) at the opposite ends of the axis (4) are mounted in cantilever and in that the valve (3 ) located near the passage (15 ') is provided with an axial blind channel (18), for example of rectangular section, for the reception by fitting of the end of the operating rod (14 ").
16. Procédé de fabrication d'un collecteur d'admission selon l'une quelconque des revendications 10 à 15, à partir d'au moins deux parties en matériau thermoplastique, caractérisé en ce qu'il consiste essentiellement à fournir une première partie (1") d'un collecteur d'admission (1), à mettre en place, sur cette première partie et dans des renfoncements (5, 5') et/ou des portions de palier (6, 12) de support et/ou de guidage adaptés, un axe de commande (4) comportant plusieurs clapets (3) disposés chacun dans une ouverture de passage ou un passage de partie (2') de tubulure d'admission (2) correspondant, à fournir au moins une seconde partie (F") du collecteur d'admission (1) comportant, le cas échéant, les parties complémentaires (2") des tubulures d'admission (2) et à la ou les disposer en position d'assemblage avec la première partie (1") en emprisonnant ou prenant en sandwich l'axe de commande (4) avec les clapets (3) et, enfin, à assembler par soudage par vibration lesdites au moins deux parties (1", F") de collecteur d'admission (1).16. A method of manufacturing an intake manifold according to any one of claims 10 to 15, from at least two parts of thermoplastic material, characterized in that it consists essentially in providing a first part (1 ") of an intake manifold (1), to be placed on this first part and in recesses (5, 5 ') and / or bearing portions (6, 12) for support and / or suitable guidance, a control shaft (4) comprising several valves (3) each arranged in a passage opening or a part passage (2 ') of intake manifold (2) corresponding, to provide at least a second part ( F ") of the intake manifold (1) comprising, where appropriate, the complementary parts (2") of the intake pipes (2) and at the or place them in the assembly position with the first part (1 " ) by trapping or sandwiching the control shaft (4) with the valves (3) and, finally, to assemble by vibration welding said at least two parts (1 ", F") of intake manifold (1).
17. Procédé selon la revendication 16, caractérisé en ce que le montage de l'ensemble axe (4) / clapets (3) est réalisé par emboîtement ou encliquetage sur ladite première partie (1") et en ce que l'assemblage des deux parties (F'et F") réalise une enceinte étanche (15) autour dudit ensemble à l'exception d'un passage d'entraînement (15'), ce dernier étant rendu étanche lors du couplage du mécanisme de transmission (14) avec l'axe de commande (4). 17. The method of claim 16, characterized in that the assembly of the axis assembly (4) / valves (3) is carried out by fitting or snapping onto said first part (1 ") and in that the assembly of the two parts (F'and F ") creates a sealed enclosure (15) around said assembly with the exception of a drive passage (15 '), the latter being made watertight when the transmission mechanism (14) is coupled with the control shaft (4).
EP00960770A 1999-08-31 2000-08-31 Intake manifold comprising a device for regulating flow in a duct portion or an intake passage and manufacturing method of the same Expired - Lifetime EP1212525B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9910999A FR2797931B1 (en) 1999-08-31 1999-08-31 DEVICE FOR CONTROLLING THE FLOW IN A DUCT PORTION OR A PASSAGE AND MANIFOLD COMPRISING SUCH A DEVICE
FR9910999 1999-08-31
PCT/FR2000/002413 WO2001016473A1 (en) 1999-08-31 2000-08-31 Device for regulating flow in a duct portion or an intake passage and manifold comprising same

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EP1212525A1 true EP1212525A1 (en) 2002-06-12
EP1212525B1 EP1212525B1 (en) 2006-07-26

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EP00960770A Expired - Lifetime EP1212525B1 (en) 1999-08-31 2000-08-31 Intake manifold comprising a device for regulating flow in a duct portion or an intake passage and manufacturing method of the same

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US (1) US6895926B1 (en)
EP (1) EP1212525B1 (en)
JP (1) JP4549596B2 (en)
AT (1) ATE334305T1 (en)
DE (1) DE60029598T2 (en)
FR (1) FR2797931B1 (en)
WO (1) WO2001016473A1 (en)

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JP2003508668A (en) 2003-03-04
JP4549596B2 (en) 2010-09-22
DE60029598D1 (en) 2006-09-07
FR2797931A1 (en) 2001-03-02
FR2797931B1 (en) 2001-10-05
DE60029598T2 (en) 2007-07-19
EP1212525B1 (en) 2006-07-26
ATE334305T1 (en) 2006-08-15
US6895926B1 (en) 2005-05-24
WO2001016473A1 (en) 2001-03-08

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